UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Hn90Esi+PT3TseW+GP6pVzQ7A/e+XeijkXwSExxq5Dw=' 
WHERE 
  key_id = '79ba552b2da614873d1fbdc7869d729e7b3344a27ea8e9a02991485daeb2cdde' 
  AND (
    token = 'Hn90Esi+PT3TseW+GP6pVzQ7A/e+XeijkXwSExxq5Dw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00022